Os 46fx
 

I know you've all heard this question a thousand times but I'm putting this motor on a Predator Q-500 just for fun and I want it to go as fast as possible, what prop should I use with the motor to get max speed, and I know it's not legal, just out to have fun

Any suggestions are very appreciated

Os 46fx
 

how many times are you gonna post this question???

Os 46fx
 

3, i posted it in different catagories to get different types of responses, extreme prop, pylon and the engine room.....so what?

Os 46fx
 

calm down skippy... just askin a question...sheesh.. check this out.. right click and click "save as" so you will always have it near and dear to you... your welcome ;)

Os 46fx
 

Joe with no class specific rules to consider the sizes I would try are APC D-1 props in 8.8x8.75, 8.8x9.0 and 8.8x9.0w sizes. Also a half wave tuned pipe called the 'Ultrathrust' from Dave Shadel at Performance Speciaties will add considerable 'go'. You will still not be up to the level of a Nelson or Jett engined Quickee but will be doing in the range of perhaps 125/130 and far faster no doubt than anything you have ever experianced before, perhaps fast enough.

John

Prop chart...
 

"http://jimsrc.com/jpg/tech_propchartws.JPG"
Interesting prop chart, however it is tuned for sport flying not max speed. A 7.4x8.0 prop now running on Nelsons is recommended for .10 to .15 engines! Recommended prop for a .40 engine is 10x5 to 11x6.

These are not go-fast props.

Stan D.

Os 46fx
 

My recomendation would be to use a 9x7.5 APC.
Besides take out the cone that comes in the muffler and the Liner that comes at the Fleve.

These way you will get much more rpm´s from your OS 46 FX.

Hope this helps.